Initial Commit

2026-05-01 23:45:09 +02:00 · 2019-10-12 02:36:31 -05:00
commit 0a8b992628
5 changed files with 252 additions and 0 deletions
@@ -0,0 +1,79 @@
+var SecTrustEvaluate_handle =
+    Module.findExportByName('Security', 'SecTrustEvaluate');
+var SecTrustEvaluateWithError_handle =
+    Module.findExportByName('Security', 'SecTrustEvaluateWithError');
+var SSL_CTX_set_custom_verify_handle =
+    Module.findExportByName('libboringssl.dylib', 'SSL_CTX_set_custom_verify');
+var SSL_get_psk_identity_handle =
+    Module.findExportByName('libboringssl.dylib', 'SSL_get_psk_identity');
+var boringssl_context_set_verify_mode_handle = Module.findExportByName(
+    'libboringssl.dylib', 'boringssl_context_set_verify_mode');
+
+if (SecTrustEvaluateWithError_handle) {
+  var SecTrustEvaluateWithError = new NativeFunction(
+      SecTrustEvaluateWithError_handle, 'int', ['pointer', 'pointer']);
+
+  Interceptor.replace(
+      SecTrustEvaluateWithError_handle,
+      new NativeCallback(function(trust, error) {
+        console.log('[*] Called SecTrustEvaluateWithError()');
+        SecTrustEvaluateWithError(trust, NULL);
+        Memory.writeU8(error, 0);
+        return 1;
+      }, 'int', ['pointer', 'pointer']));
+  console.log('[+] SecTrustEvaluateWithError() hook installed.');
+}
+
+if (SecTrustEvaluate_handle) {
+  var SecTrustEvaluate = new NativeFunction(
+      SecTrustEvaluate_handle, 'int', ['pointer', 'pointer']);
+
+  Interceptor.replace(
+      SecTrustEvaluate_handle, new NativeCallback(function(trust, result) {
+        console.log('[*] Called SecTrustEvaluate()');
+        SecTrustEvaluate(trust, result);
+        Memory.writeU8(result, 1);
+        return 0;
+      }, 'int', ['pointer', 'pointer']));
+  console.log('[+] SecTrustEvaluate() hook installed.');
+}
+
+if (SSL_CTX_set_custom_verify_handle) {
+  var SSL_CTX_set_custom_verify = new NativeFunction(
+      SSL_CTX_set_custom_verify_handle, 'void', ['pointer', 'int', 'pointer']);
+
+  var replaced_callback = new NativeCallback(function(ssl, out) {
+    console.log('[*] Called custom SSL verifier')
+    return 0;
+  }, 'int', ['pointer', 'pointer']);
+
+  Interceptor.replace(
+      SSL_CTX_set_custom_verify_handle,
+      new NativeCallback(function(ctx, mode, callback) {
+        console.log('[*] Called SSL_CTX_set_custom_verify()');
+        SSL_CTX_set_custom_verify(ctx, 0, replaced_callback);
+      }, 'int', ['pointer', 'int', 'pointer']));
+  console.log('[+] SSL_CTX_set_custom_verify() hook installed.')
+}
+
+if (SSL_get_psk_identity_handle) {
+  Interceptor.replace(
+      SSL_get_psk_identity_handle, new NativeCallback(function(ssl) {
+        console.log('[*] Called SSL_get_psk_identity_handle()');
+        return 'notarealPSKidentity';
+      }, 'pointer', ['pointer']));
+  console.log('[+] SSL_get_psk_identity() hook installed.')
+}
+
+if (boringssl_context_set_verify_mode_handle) {
+  var boringssl_context_set_verify_mode = new NativeFunction(
+      boringssl_context_set_verify_mode_handle, 'int', ['pointer', 'pointer']);
+
+  Interceptor.replace(
+      boringssl_context_set_verify_mode_handle,
+      new NativeCallback(function(a, b) {
+        console.log('[*] Called boringssl_context_set_verify_mode()');
+        return 0;
+      }, 'int', ['pointer', 'pointer']));
+  console.log('[+] boringssl_context_set_verify_mode() hook installed.')
+}